Fans of Jonghwan will be thrilled as he releases his 100% new concept and individual teaser images for "Heart Is Racing".

After Chanyong and Hyukjin's releases their teasers the other day, the attention was focused on the horror-themed teaser featuring Jonghwan. His image reads "I'm coming as I remember you, who left me." Jonghwan showed his emotional pain, his feeling is mixed showing his angry yet vindictive side as the same time.

100% is set to make their comeback on "M! Countdown" this coming March 13 which is ahead on their second mini album release on the 17th.

Watch out for 100% blast!